题解 | #找出每个学校GPA最低的同学#
找出每个学校GPA最低的同学
https://www.nowcoder.com/practice/90778f5ab7d64d35a40dc1095ff79065
select device_id,university,gpa from user_profile where (university,gpa) in (select university,min(gpa) from user_profile group by university) order by university #说是对不上，所以需要子查询 #这里是用子查询来做的
子查询很重要